If you are just going to throw it out I would suggest the venerable HAMMER. I find that the polymers never clogit up and they last for a long long time Anyway If the man says hes done it with the saw blades why argue? It worked so you're just calling him a liar or idiot and that is not good .
I will say that you can clean up and expose the diamonds on a n impregnated blade by running it through a cinder block. It works on coredrill saws too. Just make sure you do it dry.
Most of these people evidently forgot their medicine this morning.
CULTURED marble is nothing but marble dust and resin.
It can be cut with a jigsaw using any fine toothed blade.
I used a metal cutting blade to cut my vanity.
It cuts like hard soap or soft plastic, but it a bit dusty.